How do I export my model with some light (in .gltf)?
There's an &quot;Include: Punctual Lights&quot; option in the exporter that will include point, spot, and directional lights in your exports. However, note that (by default) Blender also displays &quot;Scene World&quot; lighting, and you can't just export that. You'd typically need to enable it in whatever viewer or 3D engine you are using to view the model, and that depends on the engine. A typical term for this would be &quot;IBL&quot; or &quot;environment maps&quot; in some engines. Metallic materials, in particular, require this type of lighting to look correct.